A high resolution image and rare micrograph of the contractile vacuole and intact contractile vacuole membrane of Euplotes. Close examination at high magnification reveals the organization of microtubules lining the pore itself. The contractile vacuole is to the upper left on this micrograph; the exterior of the ciliate is to the lower right. Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in alcohol and embedded in an epoxy resin. Microtome sections prepared at approximately 75nm thickness. TEM taken on 7/29/67 by R. Allen with Philips 200 operating at 60kV. Neg. 9,000X. The raw negative was scanned with an Epson Perfection V750 Pro. This image is best used for quantitative analysis. Additional information is available at (http://www5.pbrc.hawaii.edu/allen/).
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